In this you greatly rejoice, though now for a little while, if need be, you have been grieved by various trials, that the genuineness of your faith, being much more precious than gold that perishes, though it is tested by fire, may be found to praise, honor, and glory at the revelation of Jesus Christ.” 1 Peter 1:6-7
Untested faith may be true faith, but it is sure to be small faith, and it is likely to remain little as long as it is without trials. Faith never prospers so well as when all things are against her: Tempests are her trainers, and bolts of lightning are her illuminators.